NISANCI, B.; PANCAR, A. On generalization of $⊕$-cofinitely supplemented modules. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 2, p. 183–189, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2854. Acesso em: 5 dec. 2025.